John -g



J. G 'sPATHELF DOOR LOOK.

No. 80,369. Patented July 28, 1868.

Wat/263363 MW. 4 4X4 gums totes sit-tut ff'ite.

Letters retentive. 80,369, dated July 28, 1868.

IMPROVEMENT IN DOOR-LOOKS.

.iltlj: fitlgetul e ttfsmt to in than fflttttrs iatmt tut making the [If it: time T0 Ann-1 WHOM 1T MAYjCONCERN: v 'I i Beifltnovvn thatI, JoHN G. SRATIIELEbf Sanllushy, in the county of Erie, and Ststfo'f bh'io ha've inv'diited a new end usfnl lmpi'ovement in'Looks m} I do hereby declare that the following is a) fulhclir, and exact description thereof," which will'e'nable th'oseskilled in theart tonmhe end use the some, heterence being had to the'occompanying drawings; ,formingpart of this specification, in which-- i Figure l-yepresents aside. view of improved lock, onerof. the side plates Being removed. Figure 2is a; detail side irietv of. the sh ne, showing the ports in a'difi'erent positiom Figure 3 is a detail view'of the inner face ofthe covering-plate: v Fignre4 is a detail vertical section of the so tne, takon on theplan elo -fthe .li ne-a: av, fig. '3. Figure 5 is;adetail horizontal section of thesa'me, taken on the plane of the liney y, fig.-3. :Similar letters of reference indiccte coi'responding parts. i v

This invention relates to certain iinnrovementsjtvhich vire. applicable to door-locks,"ssfe-locks, trunk-lochs,

spring-locks, padlocks, and all other kinds of locks, I 1 The invention consists, first, in yivoting to: the'face of the bolt a. plate, which projects from the bolt towards the key, andwhich'is held in a certain positionby m'e'sns of springs.

I The bolt cannot be reached by tlmlkey, at least not. for unlocking, and the afoxesaidpii'oted plate will yield to the key, and will allow the some to he tnlnedl'oosein the locks; i

The ward of thekey is provided withs, notch or. recess, into which the end of the pivoted plate fits, and if it is. allowed to remain in, thereby not turning the key a n y forth-er in the direetion in which'it wasturned to i en'ghgethe plate, the latter will, when the motion of the key is reversed, act as o lever," to allow ithe bolt to be 'drawn into the look. r

The bolt can, therefoi-e, only he unlocked tni'ning the key towards tho'outer: edge of the case, as if to lock, and by then, when the plate pivoted to the-bolthas sprung in'to'the key, reversing the motionof the key.

The inven'tion' consists, second, in nrranging on the inner side of .the eovei ing-plateof the loek-rtwo sliding plates, which are, by means of springs, forced towards each-other, so as to close the keyhole.

The end of the keyspindle is wedge-shn-perl, so that itwill-force the two plates spent, and allow the key to be inserted in the lock. e l V l By no ordinary key, which hash rounded or flut splndle end, can the interior of a lock,'thait is provided --ivi th the aforesaid sliding plates, he reached.

A, in the drewing,.represents'the case of a dooFlock. Bis the bolt.

C, the spring,-whi ch tends to force the bolt out.

D is the key.

3 To the face at" the boltB is pivoted aT-shspedolf other plate, E, which-has one arm, a,- pl'lojecting toivardsthe liey, so that the latter cannot be turned in the lock'ivithoiit 'coming in contact with theplate E.

By means of a pring or springs, 15', the plate E is held in theilesired position, unless it is moved by the'lgey.

The ward c of the key does not reach the bolt, nit least notwhen the same is looked, as infigl l. For unlocking, the key must be turned in the direction of the arl'ow 1, fig. 1, until the endof the-plate a falls into :i notch or recess provided in the key, es in ,figQL 1- V The motion 'of the key is then revei'sed, when the plate E will act as a lever, to hsivethe bolt naoyed back. To the inner side of the face-plate clof tl 1e lockcas e'ore secured two sliding nletes, FIE, vvhieh ar-e,'by meonsof springs, e e, forced together, so that their edges come in contact with-oath other below'the key-hole in the plate d, as is clearly shown in figs. 3 and 4'. v (lFhe'key-hole is thus eilcctuaily closed, and no kcy'hn-ving a round or ilnt-spindle end can be pushed into the lock. t I

The end of the spindle of thekey, by means o which a. loek,-hsving the plstes F F, can be operated, must be wedge-shaped, as shown in fig}. 5,'whe n it will easily forc theplotes F F sport, as indicated.

80,36; I 2 Itis evhient that the phtteE be 'nnranged on any bolt, whatever he the Iujnstructionof thelock. In the same manner can the plates F F be git-ranged on any suitable lock, of whatever des'cription.

I do, therefore, not confine myself in the application of either of-iny improvements to anylparticu'lar con struction of locks.

I slain; as new, ,and desire to secure 1)} Letters Patent- The sliding plates F, when arranged on the inner-Bide of the cevering-plnte of a lock-ease, and, when fdroed togethe'rby means of sp in gs e e, substantially asdescribeci, soasto elose the key-hole, as set forth.

' JOHN G. 'SPATHELF.

itnegses:

CHARLES FORESTER, .Tmmz Nmmnm 

